Home / 74,383.32-102,648.61-40,391.51

Finding the Fourth Proportional to 74,383.32, 102,648.61 and 40,391.51

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Solution

The fourth proportional to 74,383.32, 102,648.61 and 40,391.51 is: 55,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,383.32 : 102,648.61 = 40,391.51 : x
  2. Step 2: Convert to fraction form
    74,383.32/102,648.61 = 40,391.51/x
  3. Step 3: Cross multiply
    74,383.32x = 102,648.61 × 40,391.51
  4. Step 4: Simplify right side
    74,383.32x = 4,146,132,512.94
  5. Step 5: Solve for x
    x = 4,146,132,512.94/74,383.32
  6. Step 6: Final answer
    x = 55,740.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.